81316125

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{6571}}^1$

素因数の和:6603

約数の個数: 48

約数和(自身を含む): 159936192

約数和(自身を除く): 78620067

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 125, 165, 225, 275, 375, 495, 825, 1125, 1375, 2475, 4125, 6571, 12375, 19713, 32855, 59139, 72281, 98565, 164275, 216843, 295695, 361405, 492825, 650529, 821375, 1084215, 1478475, 1807025, 2464125, 3252645, 5421075, 7392375, 9035125, 16263225, 27105375, 81316125]

約数ペア:

[(1, 81316125), (3, 27105375), (5, 16263225), (9, 9035125), (11, 7392375), (15, 5421075), (25, 3252645), (33, 2464125), (45, 1807025), (55, 1478475), (75, 1084215), (99, 821375), (125, 650529), (165, 492825), (225, 361405), (275, 295695), (375, 216843), (495, 164275), (825, 98565), (1125, 72281), (1375, 59139), (2475, 32855), (4125, 19713), (6571, 12375)]